Question

The gas cylinder in Figure Q19.9 is a rigid container that is well insulated except for the bottom surface, which is in contact with a block of ice. The initial gas temperature is 7 0°C.

a. During the process that occurs until the gas reaches a new equilibrium, are (i) ∆T, (ii) W, and (iii) Q greater than, less than, or equal to zero? Explain.

b. Draw a pV diagram showing the process

Short answer

a. Less than zero.

b. Zero

c. Less than zero

Step-by-step solution

Definition the relation between work done and volume.

In a system, if the work done is zero then the system has no volume.

Finding  the  heat in the gas cylinder.

a. As the gas is cooled, the rate of change of temperatures is zero.

b. As there is no work done, the volume is not changed.

c. The value of Q is less than zero as the energy transfer to environment.